Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 39m
3. Energy & Cell Processes10h 8m
4. Tissues & Histology10h 3m
5. Integumentary System2h 28m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System3h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

23. The Digestive System

Duct System of the Liver, Gallbladder, and Pancreas

Anatomy & Physiology

23. The Digestive System

Duct System of the Liver, Gallbladder, and Pancreas

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Multiple Choice

Gallstones are hard “stones” made of cholesterol or bilirubin that can form in your gallbladder or bile ducts. A patient has a gallstone located in one of the ducts associated with the gallbladder. If the bile is able to reach the gallbladder but not able to reach the duodenum, in which duct is the stone likely located?

Common hepatic duct.

Bile duct.

Cystic duct.

Pancreatic duct.

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Verified step by step guidance

Understand the anatomy of the biliary system: The biliary system includes the liver, gallbladder, and bile ducts. Bile is produced in the liver, stored in the gallbladder, and released into the duodenum via a series of ducts.

Identify the ducts involved: The main ducts are the common hepatic duct, cystic duct, common bile duct, and pancreatic duct. The common hepatic duct carries bile from the liver, the cystic duct connects the gallbladder to the common bile duct, and the common bile duct carries bile to the duodenum.

Analyze the problem: The bile can reach the gallbladder, indicating that the cystic duct is not blocked. However, bile cannot reach the duodenum, suggesting a blockage further along the pathway.

Consider the possible locations of the blockage: Since bile can reach the gallbladder but not the duodenum, the blockage is likely in the common bile duct, which is the duct that carries bile from the gallbladder and liver to the duodenum.

Conclude the likely location of the gallstone: Given the information, the gallstone is most likely located in the common bile duct, as this would prevent bile from reaching the duodenum while still allowing it to reach the gallbladder.